Asteroid Bennu: A Cosmic Grocery Store for Life's Ingredients
Asteroids might have been like cosmic delivery trucks, bringing essential supplies for life to Earth. Scientists recently found tryptophan, an important amino acid, in samples from asteroid Bennu. This discovery adds to the growing list of life's building blocks found in space rocks. Bennu is a small asteroid that visits Earth every six years. In 2020, NASA's OSIRIS...